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Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (loss) Pre-Tax and After-Tax (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2024 | Sep. 30, 2023
After-tax |  |  |  |  |  |  |  |
Other comprehensive income (loss) | $ 30,125 | $ 996 | $ (2,542) | $ (11,258) | $ (5,866) | $ 13,791 | $ 28,579 | $ (3,333)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent |  |  |  |  |  |  |  |
Pre-tax |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | 39,166 |  |  | (14,942) |  |  | 37,120 | (5,151)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 800 |  |  | 10 |  |  | 796 | 732
Other comprehensive income (loss) | 39,966 |  |  | (14,932) |  |  | 37,916 | (4,419)
Tax |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | 9,645 |  |  | (3,677) |  |  | 9,141 | (1,266)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 196 |  |  | 3 |  |  | 196 | 180
Other comprehensive income (loss) | 9,841 |  |  | (3,674) |  |  | 9,337 | (1,086)
After-tax |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | 29,521 |  |  | (11,265) |  |  | 27,979 | (3,885)
Less: Reclassification adjustments for (gains) losses realized in net income (loss) | 604 |  |  | 7 |  |  | 600 | 552
Other comprehensive income (loss) | $ 30,125 |  |  | $ (11,258) |  |  | $ 28,579 | $ (3,333)

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